// cypher2.c -- alters input, preserving non-letters
#include <stdio.h>
#include <ctype.h>				// for isalpha()
int main(void)
{
	char ch;

	while ((ch = getchar()) != '\n')
	{
		if (isalpha(ch))		// if a letter,
			putchar(ch + 1);	// display next letter
		else					// otherwise,
			putchar(ch);		// display as is
	}
	putchar(ch);

	return 0;
}